She has alzheimer's and my dad died in oct 2014 & in his will he left everything to the caregiver & she says she has a POA but I know that's impossible. My mom lives in the state of florida & I live in Virginia. This lady is also falsifying documents & has control over my mother's money. I cant afford to hire an attorney to file for guardianship.
Any authorities who investigate would ask similar questions to sort out what the situation is in order to take action.
Get the facts together and do as Mallory suggests: call APS in Florida.